NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2010070 SUBJ: SVN54 (PRN18) FORECAST OUTAGE RESCHEDULED 1 NANU TYPE: FCSTRESCD NANU NUMBER: 2010070 NANU DTG: 131326Z APR 2010 REFERENCE NANU: 2010065 REF NANU DTG: 081926Z APR 2010 SVN: 54 PRN: 18 START JDAY: 111 START TIME ZULU: 1400 START CALENDAR DATE: 21 APR 2010 STOP JDAY: 112 STOP TIME ZULU: 0200 STOP CALENDAR DATE: 22 APR 2010

1. CONDITION: GPS SATELLITE SVN54 (PRN18) WILL BE UNUSABLE ON JDAY 111 (21 APR 2010) BEGINNING 1400 ZULU UNTIL JDAY 112 (22 APR 2010) ENDING 0200 ZULU PLEASE REFERENCE NANU NUMBER 2010065 DTG 081926Z APR 2010 FOR THE ORIGINAL OUTAGE TIME

2. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW NAVCEN USCG GOV MILITARY - GPS OPERATIONS CENTER at HTTP://GPS AFSPC AF MIL/GPSOC, DSN 560-2541, COMM 719-567-2541, gps_support@schriever af mil, HTTPS://gps afspc af mil MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3514, COMM 805-606-3514, JSPOCCOMBATOPS@VANDENBERG AF MIL

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